Overflow valve having reset function

Abstract

An overflow valve having a reset function, comprising: a valve body (1), which comprises a gas inlet part (11), a gas outlet part (12) and a pressure relief part (13), the gas inlet part comprising a gas outlet opening (111); a pressure relief valve (2), which is arranged on the pressure relief part; an overflow device (3), which is arranged at the gas inlet part and comprises a flow stopping piece (31), the flow stopping piece being able to block the gas outlet opening when subjected to fluid thrust that exceeds settings; and a reset device (4), which is arranged on the pressure relief valve and comprises a push rod (41), wherein forced displacement of the push rod causes one end of the push rod to move toward the position where the flow stopping piece blocks the gas outlet opening. That is, said end of the push rod is oriented toward the position at which the flow stopping piece blocks the gas outlet opening and, once an abnormality is resolved, the push rod need only be manipulated so as to dislodge the flow stopping piece such that the flow stopping piece no longer blocks said opening. In the described overflow valve, when an incident occurs, further leakage of fuel gas can be prevented; and once the incident is resolved, the reset function can be applied via a simple operation.

Description

Overflow valve with reset function Technical Field

[0001] The present application relates to an over-flow valve with a reset function, which is generally installed in a gas storage device (such as a gas tank or a gas barrel). It can prevent the gas from continuing to leak when an accident occurs, and can be easily reset when the accident is resolved. Background Art

[0002] Gas refers to any gas that can be used as fuel (e.g., natural gas, coal gas). Combustion of gas generates a large amount of heat, and is therefore widely used in our daily lives. For example, water heaters and gas stoves are common appliances that use gas as kinetic energy.

[0003] In order to avoid some dangers that may arise when using gas storage devices, a large number of gas safety shut-off devices are sold on the market for consumers to choose from. For example, an overflow valve is a very common valve body. It is installed on the pipeline that transports gas. If the gas flow is too large, it can cut off the flow of gas. It should be noted that if the pipeline that transports gas breaks, a very strong air pressure will instantly be generated in the pipeline. In this way, this application will be activated to cut off. This feature can also prevent other conditions from causing excessive air pressure in the pipeline and thus damaging gas equipment.

[0004] However, once the fluid shutoff mechanism of the current excess flow valves on the market is activated, the shutoff cannot be released unless the excess flow valve is completely removed from the gas storage device. This method of releasing the fluid shutoff by the excess flow valve causes great trouble to the user. If it is not operated properly, a large amount of gas inside the gas storage device may leak out. Therefore, it is often necessary to ask professionals to help release the fluid shutoff by the excess flow valve when the abnormality is resolved.

[0005] Summary of the Invention

[0006] The present application adds a reset device to the pressure relief valve of the valve body, and the reset device includes a push rod. Generally speaking, the overflow device will activate the shut-off mechanism because the thrust of the fluid flowing through exceeds the set value, so that the flow stop part is blocked at the air outlet, thereby completing the fluid shut-off effect. One end of the push rod of the present application will correspond to the position when the flow stop part is blocked at the air outlet. Therefore, after the abnormality is eliminated, the stop part can be released by simply operating the push rod to push the flow stop part. In this way, the user only needs to operate the reset device to release the overflow device from blocking the fluid. There is no need to remove it from the gas storage device to release the overflow device from blocking the fluid as in traditional products. The application is intended to improve the problems existing in traditional products.

[0007] In order to achieve the above-mentioned purposes and effects, the present application provides an overflow valve with a reset function, which includes: a valve body, which includes an air inlet portion, an air outlet portion, and a pressure relief portion, and the air inlet portion includes an air outlet; a pressure relief valve, which is arranged in the pressure relief portion; an overflow device, which is arranged in the air inlet portion, and the overflow device includes a flow stop member, which will block the air outlet when the flow stop member is subjected to a fluid thrust exceeding a set value; a reset device, which is arranged in the pressure relief valve, and the reset device includes a push rod, and when the push rod is displaced by force, one end of the push rod is displaced toward the position where the flow stop member blocks the air outlet.

[0008] Furthermore, there is a neck between the air inlet portion and the pressure relief portion, and the neck has a channel. The pressure relief valve includes a stopper, an elastic member, and a valve member. The stopper is fixed to the air inlet portion and includes a first through-hole. The elastic member is located between the stopper and the valve member. The valve member is elastically supported on the neck and includes a second through-hole. The push rod is inserted through the first through-hole, the second through-hole, and the channel.

[0009] Furthermore, the push rod includes a rod body and an operating button connected to each other, the rod body is partially inserted into the second through-hole and the channel, and an anti-slip rib is provided around the rod body. The anti-slip rib is located on the side of the valve component facing the air inlet portion, and the anti-slip rib cannot pass through the second through-hole. The operating button is inserted into the first through-hole, and the return device includes a spring, which is elastically pressed between the operating button and the valve component.

[0010] Furthermore, the operating button is in the shape of a speaker.

[0011] Furthermore, the portion where the valve member abuts against the neck is an elastic gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG1 is a three-dimensional schematic diagram of this application.

[0013] Figure 2 is a schematic diagram of the decomposition of this application.

[0014] FIG3 is a schematic cross-sectional view of line segment III-III in FIG1 .

[0015] FIG4 is a schematic diagram of the actual use of this application.

[0016] FIG5 is a schematic diagram of a pipeline rupture flow stopper blocking the air outlet.

[0017] FIG6 is a schematic diagram of the push rod pushing against the flow stop member.

[0018] FIG7 is a schematic diagram showing that when the pressure inside the valve body is too high, the valve member is displaced outwards due to pressure.

[0019] Description of main component symbols:

[0020] 1 Valve body

[0021] 11 Air intake

[0022] 111 air outlet

[0023] 12. Exhaust

[0024] 13. Pressure relief unit

[0025] 14 Neck

[0026] 141 channels

[0027] 2 Pressure relief valve

[0028] 21 Stopper

[0029] 211 First Perforation

[0030] 22 elastic parts

[0031] 23 valve parts

[0032] 231 Second Perforation

[0033] 232 elastic washer

[0034] 3 Superfluid Device

[0035] 31 flow stop

[0036] 32 magnets

[0037] 4. Reset device

[0038] 41 Putt

[0039] 411 Rod

[0040] 4111 Anti-slip rib

[0041] 412 Operation button

[0042] 42 Spring

[0043] 5 Pipeline

[0044] 6. Gas storage device. DETAILED DESCRIPTION

[0045] To understand the embodiments of the present application in more detail, please refer to the accompanying drawings so that those skilled in the art can better understand and implement the present application. However, the embodiments described herein are not intended to limit the present application. As shown in Figures 1 to 3, the present application provides a resettable excess flow valve, which comprises: a valve body 1, which comprises an air inlet 11, an air outlet 12, and a pressure relief portion 13, wherein the air inlet 11 comprises an air outlet 111; a pressure relief valve 2, which is disposed in the pressure relief portion 13; an excess flow device 3, which is disposed in the air inlet 11, and the excess flow device 3 comprises a flow stop 31, which blocks the air outlet 111 when subjected to a fluid thrust exceeding a set value; and a reset device 4, which is disposed in the pressure relief valve 2, and the reset device 4 comprises a push rod 41, wherein when the push rod 41 is displaced by force, one end of the push rod 41 is displaced toward the position where the flow stop 31 blocks the air outlet 111.

[0046] 4, this embodiment is based on the example of an air inlet 11 installed on a gas storage device 6 and an air outlet 12 connected to a pipeline 5. The present application adds a reset device 4 to the pressure relief valve 2 of the valve body 1, and the reset device 4 includes a push rod 41. Generally speaking, the overflow device 3 will activate the shutoff mechanism because the thrust of the fluid flowing through exceeds the set value, so that the flow stop 31 is blocked at the air outlet 111, thereby completing the fluid shutoff effect. In this embodiment, the reset device 4 is a type in which the flow stop 31 is fixed by a magnet 32 ​​when the normal state is as an example. The aforementioned set value is determined by the magnet 3. 5 , when an accident occurs (for example, the pipeline 5 ruptures), the thrust of the fluid flowing through the flow stop 31 will increase instantly, and the magnet 32 ​​will not be able to attract the flow stop 31, so that the flow stop 31 is blocked at the gas outlet 111 to prevent the gas from leaking out. As shown in FIG6 , one end of the push rod 41 of the present application will correspond to the position when the flow stop 31 is blocked at the gas outlet 111. Therefore, after the abnormality is eliminated (the pipeline 5 is repaired), the stop of the flow stop 31 can be released by simply operating the push rod 41 to push the flow stop 31, so that the flow stop 31 is attracted back to the magnet 32 ​​to complete the restoration of the superfluidic device 3.

[0047] From the above, it can be seen that when using the present application, the user only needs to operate the reset device 4 to remove the obstruction of the fluid by the superflow device 3. There is no need to remove it from the gas storage device in order to remove the obstruction of the fluid by the superflow device as in traditional products. The present application does improve the problems existing in traditional products and is indeed novel and progressive.

[0048] As shown in Figures 1 to 6, an embodiment of a reset device 4 is provided in a pressure relief valve 2, wherein a neck 14 is provided between the air inlet 11 and the pressure relief portion 13, and the neck 14 has a channel 141. The pressure relief valve 2 includes a stopper 21, an elastic member 22, and a valve member 23. The stopper 21 is fixed to the air inlet 11 and includes a first through-hole 211. The elastic member 22 is located between the stopper 21 and the valve member 23. The valve member 23 is elastically supported on the neck 14 and includes a second through-hole 231. The push rod 41 is provided through the first through-hole 211 and the second through-hole 231. The push rod 41 includes a rod body 411 and an operating button 412 connected to each other. The rod body 411 is partially inserted into the second through-hole 231 and the channel 141. The rod body 411 has an anti-slip rib 4111 around it. The anti-slip rib 4111 is located on the side of the valve member 23 facing the air inlet portion 11. The anti-slip rib 4111 cannot pass through the second through-hole 231. The operating button 412 is inserted into the first through-hole 211. The reset device 4 includes a spring 42, which is elastically pressed between the operating button 412 and the valve member 23.

[0049] The operating button 412 may be in the shape of a speaker. Compared to the end of a cylinder, this structure has a larger area, making it easier for the user to apply force to operate.

[0050] Furthermore, the portion where the valve member 23 abuts against the neck 14 is an elastic gasket 232 to enhance the sealing effect of the valve member 23 .

[0051] 7 , when the internal pressure of the valve body 1 is too high, the valve member 23 will be displaced outward by the pressure to break away from the close contact with the neck 14 , and the setting of the return device 4 does not affect the smooth operation of the pressure relief valve 2 .

[0052] The above-described embodiments are merely preferred embodiments for the purpose of fully illustrating the present application, and the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art based on the present application are within the scope of protection of the present application. The scope of protection of the present application shall be subject to the claims.

Claims

1. A superflow valve with a reset function, comprising: A valve body, which includes an air inlet portion, an air outlet portion, and a pressure relief portion. The air inlet portion includes an air outlet; A pressure relief valve, which is arranged in the pressure relief portion; A superflow device, which is arranged in the air inlet portion. The superflow device includes a flow stop member, and the flow stop member will block the air outlet when it bears a fluid thrust exceeding the set value; A reset device, which is arranged on the pressure relief valve. The reset device includes a push rod. When the push rod is displaced by force, one end of it is displaced towards the position where the flow stop member blocks the air outlet.

2. The superflow valve with a reset function as described in claim 1, wherein there is a neck between the air inlet portion and the pressure relief portion. The neck has a channel. The pressure relief valve includes a blocking member, an elastic member, and a valve member. The blocking member is fixed to the air inlet portion and includes a first through hole. The elastic member is located between the blocking member and the valve member. The valve member elastically abuts against the neck and includes a second through hole. The push rod passes through the first through hole, the second through hole, and the channel.

3. The superflow valve with a reset function as described in claim 2, wherein the push rod includes a rod body and an operation button connected to each other. A part of the rod body passes through the second through hole and the channel. There is an anti - detachment rib around the rod body. The anti - detachment rib is located on the side of the valve member facing the air inlet portion, and the anti - detachment rib cannot pass through the second through hole. The operation button passes through the first through hole. The reset device includes a spring, and the spring elastically abuts between the operation button and the valve member.

4. The superflow valve with a reset function as described in claim 3, wherein the operation button presents the shape of a horn.

5. The superflow valve with a reset function as described in claim 2, wherein the part where the valve member elastically abuts against the neck is an elastic washer.

Images